Fix comment about removeRange.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63255 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index ff430d7..4392652 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -246,7 +246,7 @@
 
 
 /// removeRange - Remove the specified range from this interval.  Note that
-/// the range must already be in this interval in its entirety.
+/// the range must be in a single LiveRange in its entirety.
 void LiveInterval::removeRange(unsigned Start, unsigned End,
                                bool RemoveDeadValNo) {
   // Find the LiveRange containing this span.